baber/WOPTO huggingface dataset:
Patent GB-719395-A (GB)
Title: Improvements in frames for screen printing apparatus
IPC: B41F15/36
Filed: 1951-11-15
Abstract: 719,395. Stencilling-apparatus. KNOWLES, R. A. Feb. 12, 1953 [Nov. 15, 1951], No. 26741/51. Class 100 (2). Apparatus for stencil printing comprises a rectangular framework for holding the screen formed of four members each having a longitudinal groove in its outer face, and secured to said face a flat strip member, one edge of which overlaps the lower edge of the groove, and screen-retaining members adapted to be inserted in the grooves to co-operate with the overlapping edges of the strip to clamp the screen, the end of one pair of the frame members having tongues adapted to fit loosely into horizontal slots in the ends of the other pair so that the assembled frame is adjustable in length and width. The frame members 10, 11, 12, 13, Fig. 1, are fitted together by means of tongues such' as 10a and slots such as 11a, Fig. 2, and have grooves such as 10b, 11b, 13b. Retaining members 16, Figs. 1, 2 and 4, are slidable into the grooves and held by catches 17, so as to co-operate with strips 14, 15 to hold the screen 18. An outer frame comprises an angle member 19. The inner frame with the screen is inserted in the outer frame, members 11, 13 engaging over projections 19a, Fig. 3, and member 10 over projections 10a, on the outer frame. The inner frame is locked in position by a spring steel bar 20 fitted over lugs 19b on the outer frame, the bar 20 being held by means of a projection 20a engageable in a hole in a lug 19d on the outer frame. Housings 19c on the outer frame accommodate partially threaded rods 21 having bent ends 21a engaging the inner frame members, whereby the rotation of screws 22 causes adjustment of the length and width of the inner frame to tension the screen. The inner frame members may have additional longitudinal grooves on their inner faces so as to be interchangeable, each with the opposite member, to correct distortion of the members by the tension of the screen. A hinge member 24 is secured by clamps 25 to a work table so as to be adjustable in height. A hinge member 26 is secured to the outer frame and accommodates adjusting screws 23 which engage in conical end bores of the member 24, the arrangement being such that the screen assembly is pivoted to the table and adjustable laterally and vertically thereon. According to the Provisional Specification, the bar 20 may be held by a central screw.
Patent GB-268676-A (GB)
Title: Improvements in and relating to chucks
IPC: B24B19/00
Filed: 1926-10-26
Abstract: 268,676. Marks, E. C. R., (Libbey Glass Manufacturing Co.). Oct, 26, 1926. Chucks.-In a chuck for rotatably supporting articles having a solid glass stem and a foot on the base of the stem, such as sherbet glasses, goblets, and wine glasses, the article 21 is inserted laterally and gripped between insets 14, 16 having a horse-shoe shape and mounted on forks 13, 15 respectively. The forks are slidable towards and from each other, the lower one carrying three pins 17, 18 which slide through bushes or supports 20 in a head 10 secured to a shaft 11 by a screw 12. Either the upper or the lower fork may be fixed and the other slidable relatively to it and the relative motion may be produced by springs or by the weight of the movable part. The insets are replaceable to suit different shaped articles, and the chuck may be mounted above the shaft 11 and may be in a position other than vertical.
Patent GB-458700-A (GB)
Title: Improvements in or relating to throttle controls for internal combustion engines
IPC: F02D9/00
Filed: 1935-09-27
Abstract: 458,700. Fluid-pressure servomotors. FEDDEN, A. H. R., and BRISTOL AEROPLANE CO., Ltd., Filton House, Bristol. Sept. 27, 1935, No. 26794. [Class 135] In a supercharged or other high - compression internal-combustion engine having an automatic boost control for preventing the throttle valve from being opened beyond the position corresponding to the maximum permissible pressure in the induction pipe, an adjustment of the datum of the boost control is provided as the sole means whereby the setting of the throttle may be manually adjusted. A capsule 31 subjected to inductionpipe pressure by a connection 12 is connected by linkwork 27, 28, 30 to a sleeve valve 24 controlling the supply of oil to a servomotor piston 14 connected to the throttle valve, and the manual adjustment of the datum of the boost control is effected by a piston valve 25 adjusted within the sleeve valve by a Bowden or other connection 26. A lever 33 and link 32 connect the device 26 to the upper end of the capsule. When the induction-pipe pressure falls, the expansion of the capsule adjusts the sleeve valve to cause the piston 14 to rise and open the throttle. If the pilot wishes to increase the power developed by the engine, he moves the piston valve 25 downwards, and this effects an upward movement of the piston 14 to increase the throttle opening. To allow overriding of the boost control, the pivot 34 of the lever 33 is adjustable in a guide 38. The pivot 34 may alternatively be arranged as shown in dotted lines. The piston 14 may also operate mixture and ignition controls.
Patent GB-775173-A (GB)
Title: Means for facilitating the attachment or detachment of tractor or the like wheels
Inventor: SENKOWSKI ALEXANDER
IPC: B60B3/14
Filed: 1952-10-25
Abstract: 775,173. Vehicle wheels. MASSEY-HARRISFERGUSON (SALES), Ltd. Oct. 26, 1953 [Oct. 25, 1952], No. 26836/52. Class 144 (1). To facilitate the attachment of a centrally apertured tractor wheel 5 to its axle hub 2 the hub is provided with a projecting coaxial cap 7 having a spigot and socket engagement 11, 10 with the hub and secured thereto by an axial bolt 8, the cap having an axially outer tapered portion 7A to receive the wheel aperture and act to lead the wheel on to the axially inner portion 7B of the cap which closely fits the wheel aperture and supports the wheel for rotation to align its securing holes with the hub studs. As shown, the surface of the inner portion 7B of the hub cap lies flush with that of a projecting annular flange on the hub 2, within which is received a spigotlike annular projection 11 of the cap, and which assists in supporting the wheel 5.
Patent GB-1272747-A (GB)
Title: Improvements relating to the coating of metals
Inventor: MAYHEW JOHN THOMAS
Filed: 1968-06-06
Abstract: 1,272,747. Continuous hot dipping process. NATIONAL STEEL CORP. July 31, 1969 [June 6, 1968], No.26891/68. Addition to 1, 127, 833. Heading C7F. In a continuous hot dipping process for coating strip e.g. steel with Zn or Al, and controlling the weight of applied coating by passing the strip through a control zone at the exit side of the coating bath as described in parent Specifications, the present Specification relates to the same process with the exception that an unheated gas e.g. air or N 2  is used in the weight control zone. Furthermore the unheated gas is pumped to the control zone by a gas compressor and the angle of impingement of the gas jets on the strip may vary from 5 degrees below to 15 degrees above the perpendicular (inclusive).
Patent GB-634948-A (GB)
Title: Improvements in hydraulic torque converters
IPC: F16H61/50
Filed: 1947-10-07
Abstract: 634,948. Hydraulic transmission of power. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. Oct. 7, 1947, No. 26896. Convention date, Oct. 9, 1946. [Class 69 (ii)] In a hydraulic torque converter of the Fottinger type having an axially-displaceable ring-valve disposed between the pump wheel and an adjacent turbine wheel, the ring valve is provided with channels for the operative liquid, which are so dimensioned and directed that liquid flowing therethrough, when the valve is inserted into the flow circuit, will set up a torque acting on the turbine in a direction opposed to the torque acting on the turbine when the valve is withdrawn from the circuit. The pump wheel 12 with blades 6 is connected to a driving shaft 11 and the turbine wheel 13 with blades rings 7, 14 and 15 is secured to the driven shaft 16. The ring valve 1 may be moved axially by a lever 2 to interrupt the flow of liquid between the pump and turbine whilst a disc 18 is interposed between the radial part of the ring valve 1 and the exterior of the pump wheel 12 in order to reduce the ventilating effect when the ring valve is in its extreme leftward or inoperative position. When the ring valve 1 is in its operative position, torque will still be' transmitted due to a leakage of working liquid, so the channels are provided in the valve in order to produce an opposing torque which will counteract the torque due to leakage.
Patent GB-1270684-A (GB)
Title: Impact-absorbing steering shaft for vehicles
IPC: B62D1/16
Filed: 1969-05-28
Abstract: 1,270,684. Collapsible steering columns. FUJI JYUKOGYO K.K. 28 May, 1969 [1 July, 1968], No. 26904/69. Heading B7H. [Also in Division F2] A vehicle steering system includes an impactabsorbing steering shaft comprising at least two aligned shaft members 2, 3 with at least one telescopic joint, the members 2, 3 being tubular and of non-circular cross-section at at least part of the joint and of circular cross-section elsewhere, whereby the steering shaft is capable of transmitting steering torque and of absorbing energy on telescoping due to the deforming interaction of the differently shaped parts of the members 2, 3. The steering shaft is formed from a pair of parallel-bore tubes which are a sliding fit one within the other and are radially compressed over the section 5 to produce an elliptical or other cross-section with transitional shoulders 6, 7 between the elliptical and circular sections of the tubes. The non-circular section may have two elliptical sections (Fig. 3, not shown) with different minor axes. In a further alternative tubular shaft parts (17, 18) are fixed, as by welding, to solid upper and lower shaft parts and the tube (17) has a pair of cut-outs (20) in which are slidable joggled parts (18a) of the tube (18), the joggled parts being secured to the shaft (16) for transmitting steering torque.
Patent GB-1418206-A (GB)
Title: Ring seals
IPC: F16J15/40
Filed: 1973-06-06
Abstract: 1418206 Packing rings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 6 June 1973 [6 June 1972] 26929/73 Heading F2B A sealing ring 1 or 1<SP>1</SP>, e.g. for a shaft 3, is formed with spiral pumping grooves 6 in at least one axial end face. The grooves 6 extend from the inner to the outer periphery of the ring 1, 1<SP>1</SP>, and, when formed on both axial end faces, are arranged for pumping in the same sense of shaft rotation. The ring 1, preferably split, may be located in a groove (2) of the shaft 3, Figs. 1a, 1b (not shown), and is urged by the sealed pressure against an opposing face of the groove (2); the grooves (6) generate a lubricating film, e.g. of oil or air. Alternatively, Fig. 4, the outwardly facing ends of the outermost rings 1<SP>1</SP> of a labyrinth sealing arrangement may be provided with grooves 6, inner rings 1<SP>11</SP> being grooved on both faces.
Patent GB-986565-A (GB)
Title: Electric singeing machine
IPC: D06C9/04
Filed: 1963-07-08
Abstract: 986,565. Apparatus for singeing yarns. S.P.R. DHALL. July 8, 1963, No. 26934/63. Heading H5H. A machine for singeing the fluff from fabric comprises a closed chamber 19 having heat insulated walls through which the fabric is drawn downwardly over non-aligned guide rollers 4, 4a and electrostatically charged rollers 4b, 4c to raise the fluff. Disposed on each side of the fabric are heating elements 16 mounted on plates 15 supported on rollers 17 and moved by cams 3 actuating on spring-loaded rods 7 slidably mounted in bearings 9, the cams being positioned by a handle 8 locked into position by an electromagnetically operated catch 6, which is released on failure of the fabric driving unit, thus the elements are moved away from the fabric by the springs 10. It is also arranged that the element current is switched off and an exhaust fan is started.
Patent GB-787632-A (GB)
Title: Improvements in or relating to electrical plug and socket connectors
Inventor: BENHAM CEDRIC MINETT
IPC: H01R13/434
Filed: 1953-10-01
Abstract: 787,632. Two-part couplings. PAINTON & CO., Ltd. July 12, 1954 [Oct. 1, 1953], No. 26998/53. Addition to 700,999. Class 38 (1). A modification of the connector of the parent Specification comprising a plug connector in which each contact is formed in two parts A, B, an aperture 14 in a rigid pin part A fitting over projection 4 in the holder, the other part B being of springy metal of either N-shape (Fig. 3) or of U-shape (Fig. 5) and in the latter case having an aperture 141 to co-operate with projection 4. A rubber or other resilient block 16 may replace the springy metal part.
Patent GB-1269731-A (GB)
Title: 4,5-substituted 1-nitronyl-3-nitroxide-imidazoles
IPC: C07D233/28
Filed: 1969-05-28
Abstract: 1,269,731. Imidazole derivatives. SYNTEX ENERGY RESEARCH Inc., and VARIAN ENERGY. 28 May, 1969 [3 June, 1968], No. 27042/69. Headings C2C and C2U. 4,5 - Substituted 1 - nitronyl - 3 - nitroxide- 4,5-dihydro-imidazole derivatives of the general formula (wherein each of R<SP>1</SP> to R<SP>4</SP> represents an alkyl, alkenyl, alkynyl, or aryl group containing up to 12 carbon atoms, or R<SP>1</SP>-R<SP>2</SP> or R<SP>3</SP>-R<SP>4</SP> may form an alkylene or alkenylene group having from 3 to 10 carbon atoms; Y denotes O or NH and R<SP>5</SP> or -OR<SP>6</SP> or -NR<SP>6</SP>R<SP>6</SP> with the proviso that each R<SP>6</SP> is independently a hydrogen atom or an organic group) maybe prepared by reacting an imidazole of general formula (wherein R denotes -C#N or -COOR<SP>7</SP> and R<SP>7</SP> is an alkyl or aryl group) with an alcohol R<SP>6</SP>OH or NH 3  or an amine HNR<SP>6</SP>R<SP>6</SP>, preferably in an inert solvent and in the presence of a basic catalyst. Specified alcohols R<SP>6</SP>OH include saturated and unsaturated alkanols, benzyl alcohols, sucrose, cellulose, cholesterol, halo-; amino-, amido- and alkoxy-substituted alcohols, cycloalkanols, polyvinyl alcohol, and thienyl alcohol; specified amines HNR<SP>6</SP>R<SP>6</SP> include aniline, p-nitro-aniline, ethylamine, cyclohexylamine, methylaniline, dicyclohexylamine, butylamine, dimethylamine, #-naphthylamine and amino-ethyl cellulose. Examples detail the preparation of 1-nitronyl-3-nitroxide-4,4,5,5- tetramethyl - 4,5 - dihydro - 2 - imidazolyl derivatives where the 2-substituent is The novel imidazoles are useful as antioxidants, and because of their free radical structure, can be used for " spin labelling " other molecules, e.g. biologically active molecules. 2 - Cyano - N - nitronyl - 3 - nitroxide - 4,4,5,5- tetramethyl - 4,5 - dihydroimidazole is prepared by reacting the 2-bromo analogue with NaCN in dimethyl formamide.
Patent GB-1463718-A (GB)
Title: Naphthalimide compounds and their use as optical brighteners
IPC: C07D401/06
Filed: 1974-06-19
Abstract: Compounds of the formula <IMAGE>  in which   R<1> denotes an alkyl radical having 1 to 6 carbon atoms, which is optionally substituted by hydroxyl or alkoxy having 1 to 4 carbon atoms, R<2> denotes a straight-chain or branched hydrocarbon radical having 1 to 8 carbon atoms and A denotes a saturated or unsaturated heterocyclic radical having at least one secondary or tertiary nitrogen atom are prepared, starting from the corresponding 4,5-halonaphthalimides, by replacement of the halogen in the alkaline range by OR<1> and the quaternisation of the compounds thus prepared. The products are eminently suitable as optical brighteners, in particular for anionically modified fibres.
Patent GB-321766-A (GB)
Title: Electrically operated track switches
IPC: B61L11/00
Filed: 1928-09-21
Abstract: 321,766. Stolp, S. S. Sept. 21, 1928. Electric operation; electrically controlled from vehicle.-In track points operated from a contactor P on the conductor D to a position dependent on whether the car is running or coasting past the contactor the points magnet N is under the control of two relays X, Y energized in timed relationship. Contact bar E of the contactor is connected to the conductor D through a. current-selective relay X which is of low resistance and is operated only by a heavy current. Its armature A1 selects the coil SN, C'N of the low-resistance magnet N to be energized. Relay Y has a copper or brass sleeve T1, or a dash-pot or other retarding device and is of high inductance and slow magnetic response. Relay Y, shunted by a resistance R1, is connected to earth through a resistance R2 and also to contact bar C of the contactor. The armature A2 actuates a switch 6 so as to insert a resistance R4 in a circuit from contact bar C to magnet N to prevent over-heating of this magnet. The resistance R1 provides a path for leakage current from contact bar C and also suppresses the arc broken by switch 6.
Patent GB-1335420-A (GB)
Title: Cutting process and apparatus
IPC: B26D1/553
Filed: 1971-04-19
Abstract: 1335420 Slitting E I DU PONT DE NEMOURS & CO 19 April 1971 [15 April 1970] 27140/71 Heading B4B Polymeric or other non-metallic material 10, e.g. rubber, polyimides, polyurethane foam, polyethylene, polyester, polypropylene or cellulose acetate, is slit by means of a running polymeric filament 18. A web of material 10 may be drawn between angle irons 14, 15 through which filaments 18 are guided, Fig. 1, or the filaments 18<SP>1</SP>, Fig. 2, may be drawn through guide tubes 28 and discharge tubes 31, being discharged to waste by vacuum means and rolls 32, 32<SP>1</SP>. Further, Figs. 2A, 2B (not shown), filaments (52) may be guided in grooves (48) of freerunning rolls (40), or a roll of material 61, Fig. 2C, on a drive shaft 62 may be cut by filaments 55a, 55b. The filaments may be, e.g. of nylon, polyester, polyethylene or polypropylene, and may be drawn through a sheet advancing at 2-4500 feet/min., e.g. at 25-9000 feet/min.
Patent GB-1288198-A (GB)
IPC: G05D3/18
Filed: 1971-04-19
Abstract: 1288198 Controlling motors INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [22 April 1970] 27185/71 Heading H2J A stepping motor may be rotated continuously in either direction at a low or high speed by a control system comprising a single feedback encoder driven by the motor and supplying feedback pulses in accordance with the motor speed, a bi-directional sequencer supplying motor control pulses for sequentially energizing the windings of the motor, direction control means for reversing the sequence of the motor control pulses to reverse the motor direction, means for starting the motor, running it at high or low speeds and for changing from one speed to another, and a deceleration means for retarding the motor field to stop the motor. To start the motor and accelerate to low speed, a command signal on line RL sets on a run trigger RL which fires a single shot 5 via an OR circuit 7 to the sequencer BDC which displaces the motor field and causes the rotor of the motor to move in accordance with the displaced field; the feedback encoder supplies pulses along line FBL to an AND circuit 9 and a single shot 13 which sends pulses to the OR circuit 7 to displace the motor field: the motor thus accelerates to saturation speed. To start the motor and accelerate it to the high speed a command signal on line RHSL causes triggers TR-1 and TR-2 to be set on, TR-2 firing a single shot 19 to supply an extra pulse to the sequencer which causes the motor field to move to an advanced position which has the effect of changing the lead angle of the feedback encoder by one motor slip causing acceleration to the high speed. Change from low to high speed involves the extra pulse referred to in the acceleration to high speed and produced when desired by energization of the line RHSL. Change from high to low speed is accomplished by de-energizing RHSL to reset TR-1 whose output blocks the next feedback pulse to the OR circuit 7 and the motor driving circuits; the next feedback pulse resets TR-2, blocks AND 12 and allows single shot 13 to send a pulse to advance the sequencer and return it to its normal position for low speed. Stopping the motor is accomplished by bringing the field to a position where it lags the rotor and generates negative torque: de-energization of the RL line resets trigger RTR to cause a stopping sequence generator 21 to send pulses to the OR circuit and sequencer to displace the motor field to provide the lag, and when the feedback pulses have slowed sufficiently single shot 22 is fired to reset latch FL and fire single shot 21 which delivers a damping pulse to the sequencer to provide a smooth stop.
Patent GB-1169549-A (GB)
Title: Foamed Synthetic Resin Laminate and method and apparatus for making same
IPC: B29C44/30
Filed: 1966-12-16
Abstract: 1,169,549. Foamed plastics laminate. WOODALL INDUSTRIES Inc. 16 Dec., 1966 [17 Dec., 1965], No. 27190/68. Divided out of 1,169,548. Heading B5N. A process of forming a succession of laminates each having an inner sheet of foamed synthetic resin comprises mixing together reactive ingredients in quantities required to form one foamed sheet, introducing said mixture as a layer between a pair of spaced-apart flexible cover sheets, one cover sheet having a continuous length sufficient to receive a plurality of said layers in spaced succession, permitting the mixture in the said layer to expand to form a foamed sheet between to cover sheets after advancing the same between a pair of metering rolls, a laminate thereby being formed, forming in the same manner a succeeding laminate with a successive portion of said one cover sheet but spaced from the first-mentioned laminate, and detaching the laminates from each other. In one process described for making the laminates, e.g. motor vehicle trim panels batches of synthetic resin foam-forming mixture are applied in spaced relation from a mixer 17, Fig. 1, between cover sheets 15, 16. The mixer 17 is flushed with solvent between supplying successive batches, and is mounted for back and forth movement transversely of the cover sheets. The cover sheets and batch of mixture is passed together with a caul 25 having a non- planar surface between a pair of metering rolls 21, 22 and is cut into sections between batches of the foam mixture before expansion of the latter. Each section is then further processed as described in Specification 1,169,548. The cover sheets 15, 16 may be of paper, aluminium foil, or polyethylene lined paper, and the foam forming mixture may contain polymethylene polyisocyanate, polyoxypropylene sorbitol, and trichlorofluoromethane to give a rigid foam. In a second method, Fig. 5, batches of polyurethane foam 13 are applied between a cover sheet 72 and a vinyl plastics layer 14 supported on a belt 64. The belt is advanced intermittently through an oven 80 in which the foam is expanded. During heating in the oven the sheet 72 is held down by bars 86 and the layer 14 is stretched by spring-loaded devices which grip its edges by suction. The layers 72, 13 and 14 are cut between batches and the layer 72 stripped off.
Patent GB-651499-A (GB)
Title: Improvements relating to pipe joints
Inventor: EVANS FRASER MACKIE
IPC: F16L41/00
Filed: 1948-10-20
Abstract: 651,499. Pipe joints. C.A.V., Ltd. Oct. 20, 1948, No. 27247. [Class 99(i)] Seatings b, g, of con vex and oppositely-dis posed spherical forn are formed on a pipe a and the head f of a plug c respectively, and an annular member h ter minating in a connec tion i for a pipe is gripped between the members a, c and is countersunk to provide conical surfaces k co-operating with the seatings b, g.